Base | Representation |
---|---|
bin | 1111010110101… |
… | …10010001100101 |
3 | 22222100220210100 |
4 | 13223112101211 |
5 | 230433211231 |
6 | 20440414313 |
7 | 3122546460 |
oct | 753262145 |
9 | 288326710 |
10 | 128803941 |
11 | 66785342 |
12 | 37177399 |
13 | 208ba266 |
14 | 1316c2d7 |
15 | b4941e6 |
hex | 7ad6465 |
128803941 has 12 divisors (see below), whose sum is σ = 212628832. Its totient is φ = 73602216.
The previous prime is 128803897. The next prime is 128803957. The reversal of 128803941 is 149308821.
It is not a de Polignac number, because 128803941 - 27 = 128803813 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 128803896 and 128803905.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128803981) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022191 + ... + 1022316.
Almost surely, 2128803941 is an apocalyptic number.
It is an amenable number.
128803941 is a deficient number, since it is larger than the sum of its proper divisors (83824891).
128803941 is a wasteful number, since it uses less digits than its factorization.
128803941 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2044520 (or 2044517 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 128803941 is about 11349.1823934590. The cubic root of 128803941 is about 505.0213251133.
The spelling of 128803941 in words is "one hundred twenty-eight million, eight hundred three thousand, nine hundred forty-one".
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